EP 0131681 A2 19850123 - Method of optical character recognition.
Title (en)
Method of optical character recognition.
Title (de)
Verfahren für optische Zeichenerkennung.
Title (fr)
Procédé pour la reconnaissance de caractères optique.
Publication
Application
Priority
US 15334280 A 19800527
Abstract (en)
A method for recognizing and providing an output corresponding to a character is disclosed. The character is received by an imager, digitized and transmitted to a memory. Data in the memory is read in a sequence which circumnavigates the test character. Only data representative of the periphery of the character are read. During the circumnavigation character parameters, such as height, width, perimeter, area and waveform are determined. The character parameters are compared with reference character parameters and the ASCII code for the reference character which matches the character is provided as an output.
IPC 1-7
IPC 8 full level
A63H 3/28 (2006.01); A63H 3/33 (2006.01); G06F 3/16 (2006.01); G06T 7/00 (2006.01); G06T 7/60 (2006.01); G06V 30/18 (2022.01); G06V 30/182 (2022.01); G09B 5/04 (2006.01); G09B 5/06 (2006.01); G09B 7/02 (2006.01); G06V 30/10 (2022.01)
CPC (source: EP US)
A63H 3/28 (2013.01 - EP US); G06V 30/18 (2022.01 - EP US); G06V 30/182 (2022.01 - EP US); G06V 30/1823 (2022.01 - EP US); G09B 5/06 (2013.01 - EP); G09B 7/02 (2013.01 - EP); G06V 30/10 (2022.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0131681 A2 19850123; EP 0131681 A3 19870114; DE 3176044 D1 19870430; EP 0040682 A2 19811202; EP 0040682 A3 19830824; EP 0040682 B1 19870325; JP H0379711 B2 19911219; JP S5723990 A 19820208; JP S6041177 A 19850304
DOCDB simple family (application)
EP 84102848 A 19810325; DE 3176044 T 19810325; EP 81102215 A 19810325; JP 12009984 A 19840613; JP 7879181 A 19810526